From Atlas Pro.

Buy the map here: https://store.nebula.tv/products/atlas-pro-mars-surface-art-print

Join me as I journey back in time to observe the wet periods in Mars’ history!

Sources / Further Reading:

https://www.nasa.gov/press/2015/march/nasa-research-suggests-mars-once-had-more-water-than-earth-s-arctic-ocean

https://www.space.com/mars-ocean-northern-hemisphere

https://www.space.com/mars-water-oceans-hiding-beneath-crust

https://sci.esa.int/web/mars-express/-/55481-the-ages-of-mars#:~:text=Noachian%20(4.1%20%2D%203.7%20billion%20years%20ago)&text=The%20Noachian%20Period%20is%20named,numerous%20asteroid%20and%20comet%20impacts.

https://www.britannica.com/science/seawater

Mars got its crust quickly

https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2011JA016616

https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2018GL079767

https://www.sciencedirect.com/science/article/abs/pii/S0019103521004395

https://www.sciencedirect.com/science/article/abs/pii/S001910352030169X

https://planetarynames.wr.usgs.gov/Feature/1316

https://planetarynames.wr.usgs.gov/Feature/15365